Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing
Patent
1995-05-19
1997-07-22
Caldarola, Glenn A.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heavy metal containing
556 23, 556 43, 556 52, 556 56, 502108, 502200, 502209, 502227, 502349, 502353, 526943, C07F 900, C07F 1700, C07F 700
Patent
active
056505280
ABSTRACT:
In accordance with the present invention there is provided a cyclopentadienyl-type ligand represented by the formula ZA, wherein Z is a cyclopentadienyl-type group, wherein A is --YPR.sub.2, --YNR.sub.2, or --NR.sub.2, wherein Y is an alkylene group containing 1 to 24 carbon atoms, wherein each R is individually selected from alkyl groups containing 1 to 20 carbon atoms. Another aspect of the invention is to provide a metallocene represented by the formula ZAMX.sub.3, wherein Z and A are as described above, M is a Group IVB or VB transition metal, and X is a halide. Other aspects of the present invention include catalyst systems comprising the metallocenes and an organoaluminoxane, processes for preparing the above defined ligands, metallocenes and catalyst systems, and polymerization processes employing the catalyst systems.
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Alt Helmut G.
Frey Krisztina
von Massow Gabriele
Welch M. Bruce
Caldarola Glenn A.
Corvin Carl D.
Pasterczyk J.
Phillips Petroleum Company
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